Gurobi 5.0.1 (linux64) logging started Wed Apr 24 09:59:30 2013 Optimize a model with 1100 rows, 100100 columns and 200100 nonzeros Presolve time: 0.20s Presolved: 1100 rows, 100100 columns, 200100 nonzeros Variable types: 100000 continuous, 100 integer (100 binary) Root relaxation: objective 1.455863e+05, 4504 iterations, 0.21 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 145586.251 0 4 - 145586.251 - - 0s H 0 0 147456.00000 145586.251 1.27% - 0s H 0 0 146763.00000 145586.251 0.80% - 0s 0 0 145665.122 0 3 146763.000 145665.122 0.75% - 1s 0 0 145665.122 0 4 146763.000 145665.122 0.75% - 1s 0 0 145665.122 0 3 146763.000 145665.122 0.75% - 1s 0 0 145669.899 0 3 146763.000 145669.899 0.74% - 1s 0 0 145675.255 0 3 146763.000 145675.255 0.74% - 1s 0 0 145677.391 0 2 146763.000 145677.391 0.74% - 2s 0 0 145677.439 0 2 146763.000 145677.439 0.74% - 2s 0 0 145677.450 0 2 146763.000 145677.450 0.74% - 2s 0 0 145677.543 0 2 146763.000 145677.543 0.74% - 2s 0 0 145677.543 0 2 146763.000 145677.543 0.74% - 2s 0 2 145693.793 0 2 146763.000 145693.793 0.73% - 2s H 2 2 146043.50000 145746.690 0.20% 78.5 3s H 6 4 145939.00000 145747.667 0.13% 58.3 3s * 7 3 7 145859.00000 145747.667 0.08% 56.4 3s Cutting planes: Implied bound: 94 Flow cover: 6 Explored 25 nodes (8993 simplex iterations) in 3.62 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.458590000000e+05, best bound 1.458590000000e+05, gap 0.0%